YOU SAID:
I wonder how long it'll take us to figure out who committed the crime.
INTO JAPANESE
犯人を突き止めるのにどれくらい時間がかかるのかしら
BACK INTO ENGLISH
I wonder how long it will take us to find out who did this.
INTO JAPANESE
犯人を見つけるのにどれくらい時間がかかるのだろう。
BACK INTO ENGLISH
How long will it take to find the killer?
INTO JAPANESE
犯人を見つけるのにどれくらいかかりますか?
BACK INTO ENGLISH
How long will it take to find the killer?
Come on, you can do better than that.